WO2020255274A1 - Nœud de communication sans fil et procédé de communication sans fil - Google Patents

Nœud de communication sans fil et procédé de communication sans fil Download PDF

Info

Publication number
WO2020255274A1
WO2020255274A1 PCT/JP2019/024175 JP2019024175W WO2020255274A1 WO 2020255274 A1 WO2020255274 A1 WO 2020255274A1 JP 2019024175 W JP2019024175 W JP 2019024175W WO 2020255274 A1 WO2020255274 A1 WO 2020255274A1
Authority
WO
WIPO (PCT)
Prior art keywords
node
wireless communication
wireless
iab
full
Prior art date
Application number
PCT/JP2019/024175
Other languages
English (en)
Japanese (ja)
Inventor
大輔 栗田
浩樹 原田
ジン ワン
ギョウリン コウ
Original Assignee
株式会社Ｎｔｔドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to PCT/JP2019/024175 priority Critical patent/WO2020255274A1/fr
Priority to CN201980097408.6A priority patent/CN113994726A/zh
Publication of WO2020255274A1 publication Critical patent/WO2020255274A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to a wireless communication node that sets wireless access and wireless backhaul.
  • LTE Long Term Evolution
  • NR 5G New Radio
  • NG Next Generation
  • RAN radio access network
  • UE User Equipment
  • gNB wireless base stations
  • IAB Backhaul
  • the IAB node has a MobileTermination (MT), which is a function for connecting to a parent node, and a DistributedUnit (DU), which is a function for connecting to a child node or UE.
  • MT MobileTermination
  • DU DistributedUnit
  • wireless access and wireless backhaul are premised on half-duplex communication (Half-duplex) and time division multiplexing (TDM).
  • the wireless resources available by wireless access and wireless backhaul are, from a DU perspective, downlink (DL), uplink (UL) and Flexible time-resource (D / U / F) hard, soft or Not. It is classified into any type of Available (H / S / NA).
  • hard is a wireless resource that is always available for DU childlink where the corresponding time resource is connected to the child node or UE
  • soft is the DU of the corresponding time resource.
  • a radio resource (DU resource) whose availability for childlink is explicitly or implicitly controlled by the parent node.
  • 3GPP TR 38.874 V16.0.0 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Study on Integrated Access and Backhaul; (Release 16), 3GPP, December 2018
  • the present invention has been made in view of such a situation, and provides a wireless communication node and a wireless communication method corresponding to full-duplex communication in MT and DU while following the default IAB function.
  • the purpose is a wireless communication node and a wireless communication method corresponding to full-duplex communication in MT and DU while following the default IAB function.
  • One aspect of the present disclosure includes an upper node connection unit (upper node connection unit 170) used for connection with an upper node, a lower node connection unit (lower node connection unit 180) used for connection with a lower node, and the above.
  • a wireless communication node wireless communication node 100B including a control unit (control unit 150) that notifies the upper node or the network whether or not the upper node connection unit and the lower node connection unit support full-duplex communication. ).
  • One aspect of the present disclosure is full-duplex communication between a middle node connection part (IAB node connection part 140) used for connecting to a middle node and an upper node connection part and a lower node connection part in the middle node. It is a wireless communication node (wireless communication node 100A) including a control unit (control unit 150) for setting.
  • One aspect of the present disclosure is a step of connecting to a higher-level node using a higher-level node connection unit. Radio including a step of connecting to a lower node using a lower node connection part and a step of notifying the upper node whether or not the upper node connection part and the lower node connection part support full-duplex communication. It is a communication method.
  • One aspect of the present disclosure comprises a step of connecting to a middle node using a middle node connection part and a step of setting full-duplex communication between a higher node connection part and a lower node connection part in the middle node. It is a wireless communication method including.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10.
  • FIG. 2 is a diagram showing a basic configuration example of the IAB.
  • FIG. 3 is a functional block configuration diagram of the wireless communication node 100A.
  • FIG. 4 is a functional block configuration diagram of the wireless communication node 100B.
  • FIG. 5 is a diagram showing a schematic communication sequence in the case of executing wireless communication using SDM / FDM in the IAB architecture.
  • FIG. 6 is a diagram showing an example of interference occurrence when the IAB node supports beamforming and full-duplex communication.
  • FIG. 7A is a diagram showing an example of occurrence of interference assumed when MT and DU of the IAB node correspond to full-duplex communication.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10.
  • FIG. 2 is a diagram showing a basic configuration example of the IAB.
  • FIG. 3 is a functional block configuration diagram of the wireless communication node 100A.
  • FIG. 4 is a functional block configuration diagram
  • FIG. 7B is a diagram showing an example of occurrence of interference assumed when MT and DU of the IAB node correspond to full-duplex communication.
  • FIG. 8 is a diagram showing a configuration example of UE capability information in Proposal 1.
  • FIG. 9 is a diagram showing a configuration example of UE capability information in Option 1 of Proposal 2.
  • FIG. 10 is a diagram showing a configuration example of UE capability information in Option 2 of Proposal 2.
  • FIG. 11 is a diagram showing a configuration example of UE capability information in option 3 of the proposal 2.
  • FIG. 12 is a diagram showing an example of the hardware configuration of the CU 50 and the wireless communication nodes 100A to 100C.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10 according to the present embodiment.
  • the wireless communication system 10 is a wireless communication system according to 5G New Radio (NR), and is composed of a plurality of wireless communication nodes and user terminals.
  • NR 5G New Radio
  • the wireless communication system 10 includes wireless communication nodes 100A, 100B, 100C, and a user terminal 200 (hereinafter, UE200).
  • UE200 user terminal 200
  • Wireless communication nodes 100A, 100B, 100C can set wireless access with UE200 and wireless backhaul (BH) between the wireless communication nodes. Specifically, a backhaul (transmission path) by a wireless link is set between the wireless communication node 100A and the wireless communication node 100B, and between the wireless communication node 100A and the wireless communication node 100C.
  • BH wireless backhaul
  • IAB Integrated Access and Backhaul
  • the IAB reuses existing features and interfaces defined for wireless access.
  • Mobile-Termination MT
  • gNB-DU Distributed Unit
  • gNB-CU Central Unit
  • UPF User Plane Function
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • NRUu between MT and gNB / DU
  • F1, NG, X2 and N4 are used as baselines.
  • the wireless communication node 100A is connected to the NR radio access network (NG-RAN) and core network (Next Generation Core (NGC) or 5GC) via a wired transmission line such as a fiber transport.
  • NG-RAN / NGC includes CentralUnit 50 (hereinafter referred to as CU50), which is a communication node.
  • CU50 CentralUnit 50
  • NG-RAN and NGC may be included and simply expressed as "network”.
  • the CU50 may be composed of any or a combination of UPF, AMF, and SMF described above.
  • the CU 50 may be a gNB-CU as described above.
  • FIG. 2 is a diagram showing a basic configuration example of the IAB.
  • the wireless communication node 100A constitutes a parent node (Parent node) in the IAB
  • the wireless communication node 100B (and the wireless communication node 100C) constitutes an IAB node in the IAB. ..
  • the parent node may be called an IAB donor.
  • the child node in the IAB is composed of other wireless communication nodes (not shown in FIG. 1).
  • the UE 200 may configure a child node.
  • a wireless link is set between the parent node and the IAB node. Specifically, a wireless link called Link_parent is set.
  • a wireless link is set between the IAB node and the child node. Specifically, a wireless link called Link_child is set.
  • the wireless link set between such wireless communication nodes is called a wireless backhaul link.
  • Link_parent is composed of DLParentBH in the downward direction and ULParentBH in the upward direction.
  • Link_child is composed of DL Child BH in the downward direction and UL Child BH in the upward direction.
  • the wireless link set between the UE200 and the IAB node or parent node is called a wireless access link.
  • the wireless link is composed of DL Access in the downlink direction and UL Access in the uplink direction.
  • the IAB node has a MobileTermination (MT), which is a function for connecting to the parent node, and a DistributedUnit (DU), which is a function for connecting to the child node (or UE200). Although omitted in FIG. 2, the parent node and the child node also have MT and DU.
  • MT MobileTermination
  • DU DistributedUnit
  • the wireless resources used by DU include downlink (DL), uplink (UL) and Flexible time-resource (D / U / F), which are hard, soft or Not Available (H / S /). It is classified into any type of NA). Also, in the software (S), availability or not available is specified.
  • IAB configuration example shown in FIG. 2 uses CU / DU division, but the IAB configuration is not necessarily limited to such a configuration.
  • IAB may be configured by tunneling using GPRS Tunneling Protocol (GTP) -U / User Datagram Protocol (UDP) / Internet Protocol (IP).
  • GTP GPRS Tunneling Protocol
  • UDP User Datagram Protocol
  • IP Internet Protocol
  • the main advantage of such IAB is that NR cells can be arranged flexibly and with high density without increasing the density of the transport network.
  • the IAB can be applied in a variety of scenarios, such as outdoor small cell placement, indoors, and even support for mobile relays (eg, in buses and trains).
  • the IAB may also support NR-only stand-alone (SA) deployments or non-standalone (NSA) deployments including other RATs (LTE, etc.), as shown in FIGS. 1 and 2.
  • SA stand-alone
  • NSA non-standalone
  • the wireless access and the wireless backhaul can operate not only as half-duplex communication (Half-duplex) but also as full-duplex communication (Full-duplex).
  • TDM time division multiplexing
  • SDM spatial division multiplexing
  • FDM frequency division multiplexing
  • FIG. 3 is a functional block configuration diagram of the wireless communication node 100A constituting the parent node.
  • the wireless communication node 100A includes a wireless transmission unit 110, a wireless reception unit 120, an NW IF unit 130, an IAB node connection unit 140, and a control unit 150.
  • the wireless transmitter 110 transmits a wireless signal according to the 5G specifications.
  • the wireless receiver 120 transmits a wireless signal according to the 5G specifications.
  • the wireless transmission unit 110 and the wireless reception unit 120 execute wireless communication with the wireless communication node 100B constituting the IAB node.
  • the wireless communication node 100A has the functions of MT and DU, and the wireless transmitting unit 110 and the wireless receiving unit 120 also transmit and receive wireless signals corresponding to MT / DU.
  • the NW IF unit 130 provides a communication interface that realizes a connection with the NGC side and the like.
  • the NW IF unit 130 may include interfaces such as X2, Xn, N2, and N3.
  • the IAB node connection unit 140 provides an interface that realizes a connection with an IAB node (medium node). Specifically, the IAB node connection unit 140 provides the distributed unit (DU) function. That is, the IAB node connection unit 140 is used for connection with the IAB node (medium node). In this embodiment, the IAB node connection unit 140 constitutes the intermediate node connection unit.
  • DU distributed unit
  • the IAB node may be expressed as a RAN node that supports wireless access to the UE200 and backhauls access traffic wirelessly.
  • the parent node, or IAB donor may also be described as a RAN node that provides the UE interface to the core network and wireless backhaul functionality to the IAB node.
  • the control unit 150 controls each functional block constituting the wireless communication node 100A.
  • the control unit 150 sets full-duplex communication between the MT (upper node connection unit) and the DU (lower node connection unit) in the IAB node.
  • control unit 150 can notify the IAB node (wireless communication node 100B, etc.) of the type of wireless resource capable of full-duplex communication.
  • control unit 150 can specify full-duplex communication between MT and DU at the IAB node in units of all channels, channel types, or combinations of transmission channels and reception channels.
  • the channel includes all channels set between the wireless communication nodes constituting the IAB.
  • control channels include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel, Random Access Radio Network Temporary Identifier (RA-RNTI), Downlink Control Information (DCI)), and Physical. Broadcast Channel (PBCH) etc. are included.
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • RACH Random Access Channel
  • DCI Downlink Control Information
  • PBCH Broadcast Channel
  • the data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Downlink Shared Channel).
  • PDSCH Physical Downlink Shared Channel
  • PUSCH Physical Downlink Shared Channel
  • the reference signal includes Demodulation reference signal (DMRS), SoundingReferenceSignal (SRS), PhaseTrackingReferenceSignal (PRTS), and ChannelStateInformation-ReferenceSignal (CSI-RS), and the signal includes a channel. And reference signals are included. Further, the data means data transmitted via a data channel.
  • DMRS Demodulation reference signal
  • SRS SoundingReferenceSignal
  • PRTS PhaseTrackingReferenceSignal
  • CSI-RS ChannelStateInformation-ReferenceSignal
  • the data means data transmitted via a data channel.
  • FIG. 4 is a functional block configuration diagram of the wireless communication node 100B constituting the IAB node.
  • the wireless communication node 100B includes a wireless transmission unit 161, a wireless reception unit 162, an upper node connection unit 170, a lower node connection unit 180, and a control unit 190.
  • the wireless communication node 100B has a functional block similar to the wireless communication node 100A (parent node) described above, but includes a higher node connection unit 170 and a lower node connection unit 180, and a function of the control unit 190. Is different.
  • the wireless transmitter 161 transmits a wireless signal according to the 5G specifications.
  • the wireless receiver 162 transmits a wireless signal according to the 5G specifications.
  • the wireless transmission unit 161 and the wireless reception unit 162 execute wireless communication with the wireless communication node 100A constituting the parent node and wireless communication with the child node (including the case of UE200).
  • the upper node connection unit 170 provides an interface that realizes a connection with a node higher than the IAB node.
  • the upper node means a wireless communication node located on the network, specifically, the core network side (may be called the upstream side or the upstream side) rather than the IAB node.
  • the upper node connection unit 170 provides the MobileTermination (MT) function. That is, in the present embodiment, the upper node connection unit 170 is used for connection with the parent node constituting the upper node.
  • MT MobileTermination
  • the lower node connection unit 180 provides an interface that realizes a connection with a node lower than the IAB node.
  • the lower node means a wireless communication node located on the end user side (may be called the downstream side or the downlink side) of the IAB node.
  • the lower node connection unit 180 provides the distributed unit (DU) function. That is, in the present embodiment, the lower node connection unit 180 is used for connection with a child node (which may be UE200) constituting the lower node.
  • DU distributed unit
  • the control unit 190 controls each functional block constituting the wireless communication node 100B.
  • the control unit 190 notifies the upper node or the network whether or not the upper node connection unit 170 and the lower node connection unit 180 support full-duplex communication.
  • control unit 190 determines whether or not the upper node connection unit 170, that is, the MT and the lower node connection unit 180, that is, the DU can execute wireless communication according to full-duplex communication. Can notify the node (wireless communication node 100A) or CU50.
  • MT and DU of the IAB node support full-duplex communication means that MT reception (Rx) and DU transmission (Tx) can be executed at the same time, and DU Rx and MT Tx Means that can be executed at the same time, but it may also mean that Tx and Rx of MT and Tx and Rx of DU can be executed at the same time.
  • control unit 190 like the control unit 150 of the wireless communication node 100A, has MT and DU in the IAB node in units of all channels, channel types, or combinations of transmission channels and reception channels. Full-duplex communication with and can be specified.
  • FIG. 5 shows a schematic communication sequence when wireless communication using SDM / FDM is executed in the IAB architecture.
  • the IAB node wireless communication node 100B
  • the CU50 notifies the parent node whether or not the IAB node supports Full-duplex based on the Full-duplex support notification received from the IAB node (S20).
  • the IAB node may send a Full-duplex compatible notification to the parent node (wireless communication node 100A) (see the dotted line in the figure). In this case, the operation of S20 is unnecessary.
  • the parent node notifies the IAB node of the setting information related to full-duplex communication (S110).
  • the processing of S110 does not have to be linked with S10 and S20.
  • the parent node may acquire information indicating whether or not the IAB node supports full-duplex communication via the CU50 instead of directly from the IAB node. ..
  • the IAB node sets the radio resources used by the DU and MT of the IAB node based on the received setting information related to full-duplex communication (S120).
  • the setting of the radio resource also includes the setting of full-duplex communication.
  • the IAB node executes wireless communication according to full-duplex communication with the parent node and the child node (UE200 is shown as an example in FIG. 5) based on the setting of the wireless resource (S130). Further, although not shown, communication according to full-duplex communication is also executed between the CU 50 and the parent node.
  • 6 and 7A and 7B show examples of interference that can be expected when the MT and DU of the IAB node support full-duplex communication.
  • FIG. 6 shows an example of interference occurring when the IAB node supports beamforming and full-duplex communication.
  • the wireless link between the parent node (wireless communication node 100A) and the IAB node (wireless communication node 100B) is marked as “BH”, and the wireless link between the IAB node and the child node (UE200) is “AC”. ".
  • the transmission beam's own interference SI Self-interference
  • FIG. 7A and 7B show examples of cell-specific interference with a signal or channel. Specifically, FIG. 7A shows an example of interference of SSB (SS / PBCH Block) transmitted in the downward direction, and FIG. 7B shows an example of interference of RACH (Random Access Channel) transmitted in the upward direction.
  • SSB SS / PBCH Block
  • RACH Random Access Channel
  • Notification by RRC signaling (ii) Notification for each receiving channel (data channel or SSB, etc.) (Iii) Notification for each combination of transmission and reception (data channel for both transmission and reception, SSB for both transmission and reception, SSB for only one, etc.)
  • Proposal 1 defines UE capabilities (or IAB node capabilities) to indicate whether the IAB node supports Full-duplex (hereinafter abbreviated as FD).
  • the information element of the UE capability information can be defined by the example shown in FIG.
  • FIG. 8 shows a configuration example of UE capability information in Proposal 1.
  • the IE IAB-FD is used to indicate whether the IAB node supports FD between the parent link and the child node / access link.
  • the IAB node may mean one of the following by default.
  • FD supports simultaneous transmission and reception of all types of signals
  • FD supports only reception of several predefined types of signals (transmitted at the same time) It may be irrelevant to the transmitted signal
  • option 2 the following definitions are given.
  • FD supports the simultaneous transmission and reception of a predefined combination of signals. In the case of option 3, the following definitions can be given.
  • the parent node can request a report of UE capability from the child node.
  • RRC signaling may be used for the report, or signaling of another layer (MAC or the like) may be used (the same applies hereinafter).
  • Proposal 2 As mentioned above, in Proposal 2, whether or not the IAB node can execute FD can be set by the parent node using RRC signaling.
  • RRC signaling is used to set whether or not FD can be executed.
  • FIG. 9 shows a configuration example of UE capability information in option 1 of proposal 2. In this case, you need to define the behavior of the default IAB node.
  • the following alternatives may be used. If it is set to support FD by RRC signaling, the following FD support may be the default.
  • FD supports simultaneous transmission and reception of all types of signals
  • FD supports only reception of several predefined types of signals (simultaneous transmission) It may be irrelevant to the transmitted signal
  • option 1-2 the following definitions are given.
  • FD supports the simultaneous transmission and reception of a predetermined combination of signals.
  • option 1-3 the following definitions can be given.
  • FIG. 10 shows a configuration example of UE capability information in Option 2 of Proposal 2.
  • the ability information settings as shown in FIG. 10 can be set for all types of signals.
  • the example shown in FIG. 10 shows an example of enabled data and SSB reception.
  • RRC signaling sets whether or not FD can be executed separately for simultaneous transmission and reception of different combinations of different types of signals.
  • FIG. 11 shows a configuration example of UE capability information in option 3 of proposal 2.
  • the ability information setting as shown in FIG. 11 can be set for any combination of signals of any kind.
  • the following action / effect can be obtained.
  • the IAB node wireless communication node 100B
  • it is determined whether or not the DU and MT of the IAB node support full-duplex communication (full-duplex). It can notify the upper node) or CU50 (network).
  • the parent node can set full-duplex communication between MT and DU at the IAB node.
  • the parent node or CU50 can realize appropriate wireless resource setting (allocation) in consideration of full-duplex communication based on the IAB node's support for full-duplex communication. This makes it possible to support simultaneous operation of MT and DU using full-duplex communication while following the default IAB function in 3GPP.
  • full-duplex communication in the IAB node can be defined in units of all channels, channel types, or combinations of transmission channels and reception channels. Therefore, flexible full-duplex communication settings can be quickly executed according to the channel type or application.
  • the names of the parent node, the IAB node, and the child node are used, but the wireless backhaul between the wireless communication nodes such as gNB and the wireless access to the user terminal are integrated.
  • the names may be different as long as the configuration of the wireless communication node is adopted. For example, it may be simply called a first node, a second node, or the like, or it may be called an upper node, a lower node, a relay node, an intermediate node, or the like.
  • the wireless communication node may be simply referred to as a communication device or a communication node, or may be read as a wireless base station.
  • each operation of the above-mentioned proposals 1 and 2 may be compounded in the IAB node, that is, the operation related to a plurality of proposals may be associated with a specific channel, a user terminal, a wireless bearer, or the like.
  • each functional block may be realized using one device that is physically or logically connected, or two or more physically or logically separated devices that are directly or indirectly (eg, for example). , Wired, wireless, etc.) and may be realized using these plurality of devices.
  • the functional block may be realized by combining the software with the one device or the plurality of devices.
  • Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption.
  • broadcasting notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but only these.
  • a functional block that makes transmission function is called a transmitting unit or a transmitter.
  • the method of realizing each is not particularly limited.
  • FIG. 12 is a diagram showing an example of the hardware configuration of the device. As shown in FIG. 12, the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.
  • the word “device” can be read as a circuit, device, unit, etc.
  • the hardware configuration of the device may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
  • Each functional block of the device (see FIGS. 3 and 4) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • the processor 1001 performs the calculation, controls the communication by the communication device 1004, and the memory. It is realized by controlling at least one of reading and writing of data in 1002 and storage 1003.
  • Processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, and the like.
  • CPU central processing unit
  • the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
  • a program program code
  • a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
  • the various processes described above may be executed by one processor 1001 or may be executed simultaneously or sequentially by two or more processors 1001.
  • Processor 1001 may be implemented by one or more chips.
  • the program may be transmitted from the network via a telecommunication line.
  • the memory 1002 is a computer-readable recording medium, and is composed of at least one such as ReadOnlyMemory (ROM), ErasableProgrammableROM (EPROM), Electrically ErasableProgrammableROM (EEPROM), and RandomAccessMemory (RAM). May be done.
  • the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, or the like that can execute the method according to the embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, or a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like.
  • Storage 1003 may be referred to as auxiliary storage.
  • the recording medium described above may be, for example, a database, server or other suitable medium containing at least one of the memory 1002 and the storage 1003.
  • the communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • Communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be composed of.
  • FDD frequency division duplex
  • TDD time division duplex
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • each device such as the processor 1001 and the memory 1002 is connected by the bus 1007 for communicating information.
  • the bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.
  • the device includes hardware such as a microprocessor, a digital signal processor (Digital Signal Processor: DSP), ApplicationSpecific IntegratedCircuit (ASIC), ProgrammableLogicDevice (PLD), and FieldProgrammableGateArray (FPGA).
  • the hardware may implement some or all of each functional block.
  • processor 1001 may be implemented using at least one of these hardware.
  • information notification includes physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI), upper layer signaling (eg, RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block) (MIB), System Information Block (SIB)), other signals or combinations thereof.
  • RRC signaling may also be referred to as an RRC message, for example, RRC Connection Setup. ) Message, RRC Connection Reconfiguration message, etc. may be used.
  • LTE LongTermEvolution
  • LTE-A LTE-Advanced
  • SUPER3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • FutureRadioAccess FAA
  • NewRadio NR
  • W-CDMA registered trademark
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB UltraMobile Broadband
  • IEEE802.11 Wi-Fi (registered trademark)
  • IEEE802.16 WiMAX®
  • IEEE802.20 Ultra-WideBand (UWB), Bluetooth®, and other systems that utilize appropriate systems and at least one of the next generation systems extended based on them.
  • a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
  • the specific operation performed by the base station in the present disclosure may be performed by its upper node (upper node).
  • various operations performed for communication with the terminal are performed by the base station and other network nodes other than the base station (for example, MME or). It is clear that it can be done by at least one of (but not limited to, S-GW, etc.).
  • S-GW network nodes
  • the case where there is one network node other than the base station is illustrated above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information and signals can be output from the upper layer (or lower layer) to the lower layer (or upper layer).
  • Input / output may be performed via a plurality of network nodes.
  • the input / output information may be stored in a specific location (for example, memory) or may be managed using a management table.
  • the input / output information can be overwritten, updated, or added.
  • the output information may be deleted.
  • the input information may be transmitted to another device.
  • the determination may be made by a value represented by 1 bit (0 or 1), by a boolean value (Boolean: true or false), or by comparing numerical values (for example, a predetermined value). It may be done by comparison with the value).
  • the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.
  • Software is an instruction, instruction set, code, code segment, program code, program, subprogram, software module, whether called software, firmware, middleware, microcode, hardware description language, or another name.
  • Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted to mean.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium For example, a website, where the software uses at least one of wired technology (coaxial cable, fiber optic cable, twist pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.).
  • wired technology coaxial cable, fiber optic cable, twist pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
  • a channel and a symbol may be a signal (signaling).
  • the signal may be a message.
  • the component carrier (CC) may be referred to as a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented.
  • the radio resource may be one indicated by an index.
  • Base Station BS
  • Wireless Base Station Wireless Base Station
  • NodeB NodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
  • the base station can accommodate one or more (for example, three) cells (also called sectors). When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)). Communication services can also be provided by Head: RRH).
  • a base station subsystem eg, a small indoor base station (Remote Radio)
  • Communication services can also be provided by Head: RRH).
  • cell refers to a base station that provides communication services in this coverage, and part or all of the coverage area of at least one of the base station subsystems.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • Mobile stations can be subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless, depending on the trader. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
  • the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) May be.
  • at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
  • at least one of a base station and a mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a mobile station (user terminal, the same applies hereinafter).
  • communication between a base station and a mobile station has been replaced with communication between a plurality of mobile stations (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the mobile station may have the function of the base station.
  • words such as "up” and “down” may be read as words corresponding to communication between terminals (for example, "side”).
  • the uplink, downlink, and the like may be read as side channels.
  • the mobile station in the present disclosure may be read as a base station.
  • the base station may have the functions of the mobile station.
  • the radio frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe. Subframes may further consist of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel.
  • Numerology includes, for example, SubCarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, wireless frame configuration, transmission / reception.
  • SCS SubCarrier Spacing
  • TTI transmission time interval
  • At least one of a specific filtering process performed by the machine in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
  • the slot may be composed of one or more symbols (Orthogonal Frequency Division Multiple Access (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain. Slots may be unit of time based on numerology.
  • OFDM Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. Further, the mini slot may be called a sub slot. A minislot may consist of a smaller number of symbols than the slot.
  • PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (or PUSCH) mapping type A.
  • PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (or PUSCH) mapping type B.
  • the wireless frame, subframe, slot, mini slot and symbol all represent the time unit when transmitting a signal.
  • the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
  • one subframe may be referred to as a transmission time interval (TTI)
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI slot or one minislot
  • at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms. It may be.
  • the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
  • the base station schedules each user terminal to allocate wireless resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
  • the time interval for example, the number of symbols
  • the transport block, code block, code word, etc. may be shorter than the TTI.
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • TTIs shorter than normal TTIs may also be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
  • long TTIs eg, normal TTIs, subframes, etc.
  • short TTIs eg, shortened TTIs, etc.
  • TTI length the TTI length of long TTIs and 1 ms. It may be read as a TTI having the above TTI length.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • the number of subcarriers contained in RB may be the same regardless of numerology, and may be, for example, 12.
  • the number of subcarriers contained in the RB may be determined based on numerology.
  • the time domain of RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI.
  • Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
  • One or more RBs include a physical resource block (Physical RB: PRB), a sub-carrier group (Sub-Carrier Group: SCG), a resource element group (Resource Element Group: REG), a PRB pair, an RB pair, etc. May be called.
  • Physical RB Physical RB: PRB
  • Sub-Carrier Group: SCG sub-carrier Group: SCG
  • REG resource element group
  • PRB pair an RB pair, etc. May be called.
  • the resource block may be composed of one or a plurality of resource elements (ResourceElement: RE).
  • RE resource elements
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • Bandwidth Part (which may also be called partial bandwidth, etc.) may represent a subset of consecutive common resource blocks (RBs) for a neurology in a carrier. Good.
  • the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
  • BWP for UL
  • DL BWP BWP for DL
  • One or more BWPs may be set in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
  • “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
  • the above-mentioned structures such as wireless frames, subframes, slots, mini slots and symbols are merely examples.
  • the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in RB.
  • the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • connection means any direct or indirect connection or connection between two or more elements, and each other. It can include the presence of one or more intermediate elements between two “connected” or “combined” elements.
  • the connection or connection between the elements may be physical, logical, or a combination thereof.
  • connection may be read as "access”.
  • the two elements use at least one of one or more wires, cables and printed electrical connections, and, as some non-limiting and non-comprehensive examples, the radio frequency domain.
  • Electromagnetic energies with wavelengths in the microwave and light (both visible and invisible) regions can be considered to be “connected” or “coupled” to each other.
  • the reference signal can also be abbreviated as Reference Signal (RS), and may be called a pilot (Pilot) depending on the applicable standard.
  • RS Reference Signal
  • Pilot pilot
  • references to elements using designations such as “first”, “second” as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted there, or that the first element must somehow precede the second element.
  • determining and “determining” used in this disclosure may include a wide variety of actions.
  • “Judgment” and “decision” are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). It may include (eg, searching in a table, database or another data structure), ascertaining as being considered a "judgment” or “decision”.
  • judgment and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (Accessing) (for example, accessing data in memory) may be regarded as “judgment” or “decision”.
  • judgment and “decision” mean that “resolving”, “selecting”, “choosing”, “establishing”, “comparing”, etc. are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include considering some action as “judgment” and “decision”. Further, “judgment (decision)” may be read as “assuming”, “expecting”, “considering” and the like.
  • the term "A and B are different” may mean “A and B are different from each other”.
  • the term may mean that "A and B are different from C”.
  • Terms such as “separate” and “combined” may be interpreted in the same way as “different”.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention porte sur un nœud de communication sans fil (100B) comprenant : une unité de connexion de nœud supérieur (170) ; une unité de connexion de nœud inférieur (180) ; et une unité de commande (190) qui notifie à un nœud supérieur ou à un réseau si l'unité de connexion de nœud supérieur (170) et l'unité de connexion de nœud inférieur (180) prennent en charge une communication en duplex intégral.
PCT/JP2019/024175 2019-06-18 2019-06-18 Nœud de communication sans fil et procédé de communication sans fil WO2020255274A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2019/024175 WO2020255274A1 (fr) 2019-06-18 2019-06-18 Nœud de communication sans fil et procédé de communication sans fil
CN201980097408.6A CN113994726A (zh) 2019-06-18 2019-06-18 无线通信节点及无线通信方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/024175 WO2020255274A1 (fr) 2019-06-18 2019-06-18 Nœud de communication sans fil et procédé de communication sans fil

Publications (1)

Publication Number Publication Date
WO2020255274A1 true WO2020255274A1 (fr) 2020-12-24

Family

ID=74037078

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/024175 WO2020255274A1 (fr) 2019-06-18 2019-06-18 Nœud de communication sans fil et procédé de communication sans fil

Country Status (2)

Country Link
CN (1) CN113994726A (fr)
WO (1) WO2020255274A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190021084A1 (en) * 2017-07-12 2019-01-17 Futurewei Technologies, Inc. System And Method For Backhaul and Access In Beamformed Communications Systems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104254077B (zh) * 2013-06-27 2018-01-02 华为技术有限公司 中继配置方法和设备
US9420606B2 (en) * 2014-06-25 2016-08-16 Qualcomm Incorporated Full duplex operation in a wireless communication network
CN107295815B (zh) * 2015-05-05 2020-06-02 华为技术有限公司 一种基站、小小区和控制信道的配置方法
US11012204B2 (en) * 2016-06-08 2021-05-18 Lg Electronics Inc. Communication method of using full duplex in NR
US10206232B2 (en) * 2016-09-29 2019-02-12 At&T Intellectual Property I, L.P. Initial access and radio resource management for integrated access and backhaul (IAB) wireless networks
CN108768489B (zh) * 2018-05-24 2021-01-29 国网江苏省电力有限公司电力科学研究院 基于fd-tpsr网络系统的中继节点部分干扰消除与目的节点接收信号检测方法
GB2574875B (en) * 2018-06-21 2021-04-14 Tcl Communication Ltd Route selection and QoS support in a wireless access network
CN109525993B (zh) * 2018-12-07 2020-10-23 北京邮电大学 综合接入和回传无线通信网络动态分配资源的方法和设备

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190021084A1 (en) * 2017-07-12 2019-01-17 Futurewei Technologies, Inc. System And Method For Backhaul and Access In Beamformed Communications Systems

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Resource Management in IAB Network", 3GPP TSG RAN WG1 #95 RL-1813419, 12 November 2018 (2018-11-12), XP051555458 *
ERICSSON: "IAB resource allocation and multiplexing (revision of Rl-1813566", 3GPP TSG RAN WG1 #95 RL-1814090, 12 November 2018 (2018-11-12), XP051555621 *

Also Published As

Publication number Publication date
CN113994726A (zh) 2022-01-28

Similar Documents

Publication Publication Date Title
US20240121037A1 (en) Radio communication node and radio communication method
WO2020250395A1 (fr) Nœud de communication radio et procédé de communication radio
WO2020194733A1 (fr) Noeud sans fil et procédé de commande de communication sans fil
WO2021106160A1 (fr) Nœud de communication sans fil
WO2021059446A1 (fr) Nœud de communication radio
JP7148622B2 (ja) 端末及び通信方法
WO2022003781A1 (fr) Nœud de communication sans fil
WO2021161479A1 (fr) Nœud de communication sans fil
WO2021152729A1 (fr) Nœud de communication sans fil
WO2020230854A1 (fr) Nœud sans fil
WO2021130942A1 (fr) Nœud de communication sans fil
WO2020255274A1 (fr) Nœud de communication sans fil et procédé de communication sans fil
WO2022153512A1 (fr) Nœud de communication sans fil
WO2022215181A1 (fr) Nœud de communication radio et procédé de communication radio
WO2022003834A1 (fr) Nœud de communication sans fil
WO2022044185A1 (fr) Nœud de communication sans fil
WO2022239066A1 (fr) Nœud de communication sans fil
WO2022024314A1 (fr) Nœud de communication sans fil
WO2021161467A1 (fr) Nœud de communication sans fil
EP4192068A1 (fr) Noeud de communication sans fil
WO2021205626A1 (fr) Nœud de communication sans fil
WO2022153513A1 (fr) Nœud de communication sans fil
WO2022153507A1 (fr) Nœud de communication radio, procédé de communication radio
WO2022208830A1 (fr) Noeud de communication sans fil, station de base et procédé de communication sans fil
WO2021039015A1 (fr) Nœud de communication sans fil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19933728

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19933728

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP